EP 0782603 B1 20000405 - LIQUID CRYSTAL SOLUTIONS BASED ON CELLULOSE AND AT LEAST ONE PHOSPHORIC ACID
Title (en)
LIQUID CRYSTAL SOLUTIONS BASED ON CELLULOSE AND AT LEAST ONE PHOSPHORIC ACID
Title (de)
FLÜSSIGKRISTALLLÖSUNGEN BASIEREND AUF ZELLULOSE UND WENIGSTENS EINER PHOSPHORSÄURE
Title (fr)
SOLUTIONS CRISTAL-LIQUIDE A BASE DE CELLULOSE ET D'AU MOINS UN ACIDE PHOSPHORIQUE
Publication
Application
Priority
- CH 9500206 W 19950918
- FR 9411404 A 19940919
Abstract (en)
[origin: WO9609356A1] Liquid crystal solutions comprising cellulose dissolved in a solvent are disclosed. The solutions contain over 10 wt % of cellulose and are optically anisotropic at room temperature and at rest. The solvent contains over 85 wt % of at least one phosphoric acid, said phosphoric acid(s) having the following average formula: [n(P2O5), p(H2O)], wherein 0.33 < (n/p) < 1.0. A method for preparing such solutions, the preparation of fibres or films from said solutions, assemblies of such fibres or films, and articles, particularly tyre casings, reinforced with said fibres, films or assemblies, are also disclosed.
IPC 1-7
IPC 8 full level
B60C 9/00 (2006.01); C08B 1/00 (2006.01); C08K 5/21 (2006.01); C08L 1/00 (2006.01); C09K 19/38 (2006.01); D01F 2/02 (2006.01)
CPC (source: EP US)
C08B 1/003 (2013.01 - EP US); D01F 2/02 (2013.01 - EP US); Y10T 152/10513 (2015.01 - EP US); Y10T 428/29 (2015.01 - EP US); Y10T 428/2965 (2015.01 - EP US)
Designated contracting state (EPC)
DE FR GB NL
DOCDB simple family (publication)
WO 9609356 A1 19960328; AU 3378595 A 19960409; CN 1103360 C 20030319; CN 1164866 A 19971112; CN 1182281 C 20041229; CN 1422997 A 20030611; DE 69516157 D1 20000511; DE 69516157 T2 20000914; EP 0782603 A1 19970709; EP 0782603 B1 20000405; FR 2724662 A1 19960322; FR 2724662 B1 19970124; JP 3770910 B2 20060426; JP H10505873 A 19980609; US 5938971 A 19990817
DOCDB simple family (application)
CH 9500206 W 19950918; AU 3378595 A 19950918; CN 02146863 A 19950918; CN 95195155 A 19950918; DE 69516157 T 19950918; EP 95930359 A 19950918; FR 9411404 A 19940919; JP 51048896 A 19950918; US 80975297 A 19970318